Hmm, I just noticed now that this thread was posted up in the Professional Detailers section.

If you really plan to buy a machine for your detailing business, then it's probably advantageous to learn how to use a rotary confidently and very well (or customers will get upset...) since the big advantage of a rotary machine is pure speed. And in the detailing business, time is money.
However if this is just for your own personal use, a rotary buffer is probably overkill. The reason for this is that even if your car's paint requires some moderately serious swirl removal, you will only need to perform this operation
once, and afterwards only yearly or biannual minor swirl removal sessions should be necessary. Using the right pads and products should allow you to fix even neglected finishes although it may take longer and DavidB's video and Alboston's thread go through this. In the long run a PC is safer for casual users since time isn't as great a factor and it requires less skill, practice, and concentration to handle. It's better suited for routine, frequent use with the occasional semi-serious restoration.
Well, there you go. With greater polishing power comes greater responsibility. I believe that the majority of rotary users detail professionally and most weekend warriors (like me) find the PC more suitable, but hopefully you should have enough info now to make up your own mind.
